Machine for operating upon casting-patterns.



C. C. BLAKE.

MACHINE F 0R OPERATING UPON CASTING PATTERNS. APPLICATION nuzn OCT. 29. 1914. RENEWED JUNE 14'. 1913.

1 284 858. Patented Nov. 12, 1918 T 'rEi e /6 k /2 \mnumk\\ O wlummi CHARLES o. BLAKE,

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OF ZBROOKLINE, MASSACHUSETTS, ASSIGNOR T0 0. C. BLAKE, BOSTON, MASSACHUSETTS, A CORPORATION OF NEW YORK.

MACHINE FOR OPERATING UPON CASTING-PATTERNS.

Application filed October 29, 1914, Serial No. 869,336.

To all whom it may concern.

Be it known that I, CI-IARLEs C. BLAKE, a citizen of the United States, residing at Brookline, in the county of Norfolk and State of Massachusetts, have invented a new and useful Improvement in Machines for Operating Upon Casting-Patterns, of which the following is a specification.

The present invention relates to machines for operating upon casting patterns, and more particularly to a machine for operating upon casting patterns, having marginal flanges, which determine the form of the leaders used in automatic shoe machines.

These leaders are now 'made by producing a sole-shaped blank, having the shrinkage of cast iron and the spring of the last measurements incorporated therein, and then inserting the blank into a machine provided with automatic mechanism for winding a strip of paper around the edge of the blank to form a flange thereon. After the pattern is removed from this machine it is finished manually by imparting thereto the draft necessary for the removal of the pattern from the sand.

The object of the present invention is to produce a machine for imparting the draft to the pattern.

To the accomplishment of this object and such others as may hereinafter appear the features of the invention relate to certain devices, combinations and arrangements of parts hereinafter described and then set forth broadly and in detail in the appended claims which possess advantages readily apparent to those skilled in the art.

The various features of the present invention will be best understood from an inspection of the accompanying drawings illustrating the best form of the invention at present known to the inventor, in which,

Figure 1 is a front elevation of a machine for operating upon casting patterns;

Fig. 2 is a sectional plan on the line 2-2, Fig. 1; and

Fig. 3 is an enlarged detail in front elevation, partly in section, of the devices for supporting, guiding, feeding and operating upon the pattern.

When the casting pattern for making the leaders used in automatic shoe machines is removed from the machine hereinbefore re- Specification of Letters Patent.

Patented Nov. 12, 1918.

Renewed June 14, 1918. Serial No. 240,079.

ferred to which winds a strip of paper around the edge of the prepared blank to form the flange thereon the inner and outer faces of the flange are substantially parallel thus requiring a draft to be imparted thereto in order to permit the removal of the pattern from the molders sand. The top and bottom faces of the flange are somewhat rough owing to projecting edges of the paper due to inequalities in the wind. To impart the draft to the pattern and iron out the roughness on the top and bottom faces the pattern is inserted in the machine now to be described which is provided with a series of rolls which impart the draft to the pattern and with a pair of rolls which feed the pattern and iron the top and bottom faces of the flange.

In the illustrated embodiment of the invention the draft is imparted to the flange of the pattern by a series of three rolls arranged to engage the upper inner face, the lower inner face, and the outer face of the flange respectively. The lower inner face of the flange is engaged by a substantially frusto-conical roll 1 the smaller base of which engages and supports the bottom face of the pattern. The roll 1 is mounted to rotate freely upon a vertical post 2, (Fig. 3), secured to the machine frame. The upper inner face .of the flange is engaged by a substantially frusto-conical roll 3 the smaller base of which engages the top face of the pattern. The roll 3 is mounted to rotate freely upon a vertical post 4 car- "led by a swinging frame 5 which is pivotally mounted on a yoke 6 formed on the machine frame. The roll 3 is held in operating position by a toggle 7 one end of which is connected to the machine frame and the other end of which is connected to the swinging frame 5. The toggle is normally held broken to lift the roll 3 from the work by a spring 8 connected at its ends toon-e arm of the toggle and the swinging frame 5 respectively. Movement of the toggle under the influence of the spring 8 is limited by a pin 9 carried by the toggle and arranged to engage the machine frame. The toggle is made to bring the roll 8 into operative position against the tension of the spring by an arm 10 pivoted on the toggle and arranged so that one end may engage .post 15 carried by the machine frame.

the machine frame and force the toggle from the dotted line position into the full line position, (Fig. 1), when actuated by the operative. The toggle-making movement of the arm 10 is limited by a pin 11 carried by the toggle, (Fig. 1). The outer face of the flange is engaged by a frustoconical roll 12 mounted to rotate freely on a post 13, (*i 2), carried by one end of a lever 14 which is pivoted on a vertical The roll 12 is held against the outer face of the flange by a spring 16 one end of which is connected to the machine frame and the other end of which is connected to the free end of the lever 14 which may be used as an operating handle to swing the roll into and out of operating position.

The pattern is fed to transfer the point i of operation around the flange by a pair of rolls 17 and 18 arranged to engage the top and bottom faces of the flange respectively. The roll 17 is mounted on a shaft 19, journaled in the swinging frame 5. The shaft 19 also carries a gear 20 which meshes with agear 21 carried by a shaft 22 journaled in the machine frame and driven from some suitable source of power through a driving pulley 23. The roll 18 ismounted on the shaft 22. In addition to feeding the pattern the rol1$17 and 18 iron the top and bottom faces of the flange-and thus remove any roughness thereon.

During the operation of the machine the rolls 1, 3 and 12 compress the flange laterally as illustrated in Fig. 3 thus imparting thedraft thereto. As the pattern is fed to transfer the point of operation of the rolls around the pattern the rolls 1, 3 and 12 act as guides for swinging the pattern laterally to maintain the flange in the line of feed.

While the invention has been illustrated and described as being particularly useful in connection with a machine for operating upon a casting pattern having a marginal flange it will be apparent to those skilled in the art that the general organization of the machine, together with the various features of the mechanism by which the parts are operated are applicable to machines for imparting adraft to other kinds of patterns.

It will also be understood that, while it is preferred to employ the specific construction and arrangement of the parts shown and described, this construction and arrangement is not essential, nor is the conjoint use of all the features of the invention essential, except so far as specified in the appended claims, and it may be varied or modified without departing from the broader features of the invention.

What is claimed as new is:

1. A machine for operating upon a cast ing pattern, having, in combination, means for supporting the pattern, and means for imparting a draft to the pattern, substantially as described.

2. A machine for operating upon a casting pattern, having, in combination, means for supporting the pattern, means for imparting a draft to the pattern, and meansfor relatively actuating the pattern and 0p crating means to transfer the point of operation of the operating means around the pattern, substantially as described.

3. A machine for operating upon a casting pattern, having, in combination, means for supporting the pattern, means for imparting a draft to the pattern, feeding means, and mechanism for changing the relative position of the pattern and operating means and cooperating with the feed to present the pattern properly to the operating means as its point of operation is transferred around the pattern, substantially as described.

4. A machine for operating upon a casting pattern, having, in combination, means for supporting the pattern. means for imparting a draft to the pattern, means for feeding the pattern to transfer the point of operation of the operating means around the pattern, and means for swinging the pattern during the feed to present the pattern properly to the operating means as its point of operation is transferred around the pattern, substantially as described.

5. A machine for operating upon av casting pat-tern having a marginal flange, having, in combination, means for supporting the pattern, and means engaging the top and bottom faces of the flange for feeding the pattern, substantially as described.

6. A machine for operating upon a casting pattern having a marginal flange, having, in combination, means for supporting the pattern, and means engaging the top and bottom faces of the flange for feeding: the pattern and ironing the flange, substantially as described.

7. A machine for operating upon a casting pattern having a marginal flange, having, in combination, means for feeding the pattern, means constructed and arranged to apply pressure on the inner and outer faces of the flange, and means for supporting the pattern and holding the flange in position to be operated upon by the operating means, substantially as described.

8. A machine for operating upon a castand feeding the pattern, and means for providing the marginal flange with a draft, substantially as described.

10. A machine for operating upon a casting pattern having a marginal flange, having, in combination, means for supporting the pattern, and means for ironing the top and bottom faces of the flange, substantially as described.

11. A machine for operatin upon a casting pattern having a margina flange, having, in combination, means for supporting the pattern, means engaging the top and bottom faces of the flange for feeding the pattern, and means engaging the inner and outer faces of the flange for imparting the draft thereto, substantially as described.

12. A machine for operating upon a pattern having a marginal flange, having, in combination, means for supporting the pattern, means for feeding the pattern, and means engaging the inner and outer faces of the flange for imparting a draft to the pattern and swinging the pattern to maintain the flange in the line of feed, substantially as described.

13. A machine for operating upon a pattern having a marginal flange, having, in combination, freely rotatable devices for engaging the inner and outer faces of the flange to impart a draft thereto, and power driven devices for engaging the top and bottom faces of the flange for feeding the pattern and ironing the flange, substantially as described.

14. A machine for operating upon a pattern having a marginal flange, having, in combination, a series of substantially frustoconical rolls arranged to engage the inner and outer faces of the flange for imparting a draft thereto, and another series of rolls arranged to engage the other faces of the flange for feeding the pattern and ironing the flange, substantially as described.

15. A machine for operating upon a pattern having a marginal flange, having, in combination, a frusto-conical roll arranged to rotate upon a stationary support and constructed to engage the bottom face of the pattern and the lower inner face of the flange, a second frusto-conical roll arranged to rotate on a swinging support and constructed to engage the top face of the pattern and the upper inner face of the flange, a third frusto-conical roll arranged to rotate on a second swinging support and con- Copies of this patent may be obtained for five cents each, by addressing the structed to engage the outer face of the flange. and means for swinging the supports to bring the rolls mounted thereon into and out of operating position, substantially as described.

16. A machine for operating upon a pattern having a marginal flange, having, in combination, a frusto-conical roll arranged to rotate upon a stationary support and constructed to engage the bottom face of the pattern and the lower inner face of the flange, a second frusto-conical roll arranged to rotate on a swinging support and constructed to engage the top face of the pattern and the upper inner face of the flange, means normally tending to swing the support and remove the roll thereon out of operative position, a toggle for holding the roll mounted on the swinging support in operative position, and means for making and breaking the toggle, substantially as described.

17 A machine for operating upon a pattern having a marginal flange, having, in combination, a frusto-conical roll arranged to rotate upon a stationary support and constructed to engage the bottom face of the pattern and the lower inner face of the flange, a second frusto-conical roll arranged to rotate on a swinging support and constructed to engage the top face of the pattern and the upper inner face of the flange, means normally tending to swing the support and remove the roll thereon out of operative position, a toggle for holding the roll mounted on the swinging support in operative position, means for making and breaking the toggle, and means for limiting the movement of the toggle, substantially as described.

18. In a machine for operating upon a casting pattern having a marginal flange, devices for supporting, guiding and feeding the pattern including operating means for imparting a draft to the pattern and ironing the flange, substantially as described.

19. In a machine for operating upon a casting pattern having a marginal flange, devices for supporting, guiding and feeding the pattern including operating means for compressing the flange, substantially as described.

CHARLES C. BLAKE. Witnesses:

CATHERINE L. SULLIVAN, VIRGINIUS A. MAYER.

Commissioner of Patents,

Washington, D. C. 

